JAKARTA, Jan 17 (Reuters) - Indonesia expects its Jambaran Tiung Baru (JTB) and Tangguh Train-3 gas projects to come on stream this year after delays due to restrictions linked to COVID-19, upstream oil and gas regulator SKK Migas said on Monday.

BP's Tangguh Train-3 is now expected to start production in December 2022, after being delayed https://www.reuters.com/article/us-lng-indonesia-bp-idUSKBN26L0VW by about a year, while Pertamina's JTB is now likely to start operations in May 2022, after initially targeting commencement in the second half, SKK Migas said.

The Tangguh delay has caused some postponements in shipments to state utility firm Perusahaan Listrik Negara (PLN).

"There is a PLN contract for two LNG cargoes which has not been able to be fulfilled," SKK Migas deputy Arief Setiawan Handoko told a briefing.

The $8.9 billion project was expected to increase the output capacity at Tangguh in West Papua province by 3.8 million tonnes of liquefied natural gas per year.

BP Indonesia and Pertamina had no immediate comment on the new timeline when contacted by Reuters.

Pertamina's JTB project is expected to produce 192 million standard cubic feet of gas per day (mmscfd), where 100 mmscfd is expected to be distributed to PLN. (Reporting by Bernadette Christina Munthe Additional reporting by Fransiska Nangoy; Editing by Martin Petty)